Adolescence is a stage when a person starts to separate oneself from the family's nurture and becomes more exposed to the world. It is when one starts to take hold of what feels like an abundance of responsibilities; obtaining good grades, good friends, and excelling in sports or personal hobbies. Working part-time should not be a part of that abundance, it can wait.
Working while going to high school will lessen the focus on what should be prioritized, students' full concentration on academic study, school's extracurricular activities, social and family life. Students tend to have troubles fitting these elements together on one schedule. If students take part-time jobs, it will become even harder to hold a solid schedule that balances different aspects of their lives. Their efforts will shift towards getting to work on time, doing their jobs well to satisfy their bosses, and making money. By the end of the night when their shifts are done, students will return home exhausted and rush through their work to get enough rest without much effort. They will face struggles to maintain good grades and do not spend enough time with friends, families, or explore their own hobbies.
To gain experience of earning money from work is not yet necessary for adolescents. Instead of spending hours a day to do so, they should have time to get enough sleep for growth and find their interests through trying different sports, clubs, and interacting with different people. This will prepare them for college as they understand who they are and what they want for the future. Earning money and gaining experience from it can be done when fully grown and understand oneself, as during college years, when money is more necessary.
During high school years, students should focus on their academic and extracurricular activities, as well as their relationships with friends and families. They should be able to maximize their knowledge to prepare for college, and discover their true selves. Working part-time will not only consume time for these priorities, but also affect their growth as they lack rest.